Skate-fastening



.L HARRAR.

Skate Fastening. No. 42,472. V` l' Patented Apr. 26, 1864.

NTTE STATES ATENT FETCE.

JLHN HARRAR, OF PHILADELPHIA, PENNSYLVANIA.

SKATE-FASTENING.

To all whom, it may concern:

Be it known that l, JOHN Hannan, of the city of Philadelphia, and State of Pennsyl- Vania, have invented a new and useful Inprovement in Skate-Iiastenings--to wit, on that mode wherein a flat plate (as represented in Figure 1 ot' the accompanying drawings) is employed, having made through it holes s s for the reception ot' screws, which are necessary to fasten it to the heel 'of a boot, also an elongated aperture, a, to receive and hold the counterpart or nipple n, attached to askate,as shown at Fig. 2 and I do hereby declare that the following is a full and exact description of my invention, reference heing had to the accompanying drawings, and to the letters of reference, in which- Fig. 3 is a perspective view of a cylinder, having around its entire external sides a screw-thread, t t, said screw-thread having several notches, e v, made across it to enable it to cut its way, and Va circular cavity, o,

leading cndwise about three-fourths way through, the employment of which, instead ot' the above-described flat plate, (but having a like elongated aperture leading through its other fourth part, as e in the perspective view, Fig. 4, and opening into the cavity c, as shown in the vertical section e r, Fig. 6, corresponding with the lineer of the plan Fig. 5,) when screwed intoa hole made in the heel of a boot, will answer all the purposes of said flat plate, and has the advantage of a more ready adjustment, can be graduated as the leather wears, is applicable to the smallest heel, and may be readily removed and the hole stopped. l

To enable others skilled in the art to make my invention, I will proceed to describe its construction.

Onthe end of a rod of iron or other hard metal, of ive-eighths ot` an inch in diameter, I cut a screw-thread, t t, (of from twenty to twenty-four threads to the inch,) for any distance, tapering it slightly for about two revolutions at the end. From this end I drill a cavity, c, of seven sixteenths of an inch in diameter, and ve-siXteenths in depth, then make a cut around and nearly through the rod, at the distance of seven-sixteenths of an inch from the end. I then screw the end into a block of hard wood for a short distance, and sever it from the rod. I now have a short cylindrical screw with a cavity in it held fast in the block, the end of which I level ofi". From the end thus leveled and opening into the cavity o, I drill and shape an elongated aperture, a, to fit the counterpart or nipple n attached to the skate, then remove it from the block, and cut the notches o n across the thread.

To make use of my invention, I fasten it to the boot by boring a hole in the heel, with a nine-sixteenths ot' an inch center-bit, then enter the slightly-tapered end ot' the cylinder, and in the elongatedaperture a, insert the counterpart or nipple n, attached to the skate, and with the skate a-s a lever screw the cylinder until about liush with the heel, stopping when the skate is at right angles with the length of the boot. To lock the cylinder and the counterpart together, let the nipple of the counterpart pass through the aperture into the cavity, and turn the skate to its proper place under the hoot, when it will be held fast by means of the neck of the counterpart being caught by the sides of the elongated aperture.

What I claim as my invention, and desire to secure by Letters Patent, is-

The combination of a metallic cylinder, Fig. 3, screw-thread tt, notches a e, and cav ity c, which, when employed instead of the ilat plate shown at Fig. 1, but having a like elongated. aperture, a, opening into the cavity c, will obtain for the said elongated aperture a more ready adjustment, graduation, removal, and require less space, substantially for the purpose described, not meaning to make anyV claim to the elongated aperture a or the counterpart n, attached to the skate, when used'fseparately from my invention.

Witness my hand the 14th day ot March, A. D. 1364, iu the city of Philadelphia, Penn- Sylvania.

JOHN HARRAR.

In presence of- J oHN L. FREDERICK, M. L. FREDERICK. 

